Chemistry
This category encompasses all questions about the composition, structure, properties, and reactions of matter.
Total questions 1014200
Follow
Falkirkdouglas [5]
wrote the first answer to Ethanol chemical structure 3 minutes ago
ID3173019859
asked Ethanol chemical structure and said it was different from What is the Lewis structure of ethanol 8 minutes ago
ID3265945554
wrote the first answer to Is SCl a polar molecule 9 minutes ago
Gimmethatcat1234 [0]
wrote the first comment on Discussion: What is the chemical messenger of the nervous system 9 minutes ago
Answers
Vigorouschemist
GRALISTAIR
Meave60
Desdichado
Norvellwisdom
Edits
GRALISTAIR
Mannydlr
Vigorouschemist
Theprismgroup
Desdichado
Organization
HisPowr4U
Desdichado
Dfoofnik
GRALISTAIR
Muhammadafzal
Questions
Vigorouschemist
Gracepiano14
Dawnvicm
Rohanchandra 258
Ilovetacos015
Community
Lazarus
Desdichado
Bringingthewood
Dfoofnik
Norvellwisdom
superphosphates are water soluble fertilisers and are used extensively to promote root growth especially plants belonging to the...
Popularity: 143 • Tools: Recategorize
Constituent Ions are Spectator Ions. Spectator Ions are ions that appear on both sides of the chemical equation. (Spectator Ions...
Popularity: 143 • Tools: Recategorize
After writing the three resonance structures of the fulminate ion, you'll notice that In each resonance structure, the least...
Popularity: 143 • Tools: Recategorize
I never thought I'd see the day where I answer a question here. tin(IV) has a positive four charge. selenide usually forms a...
Popularity: 143 • Tools: Recategorize
-- paint it -- soak it in water -- nail or glue more wood to it -- bury a piece of lead in it -- move it past you at...
Popularity: 143 • Tools: Recategorize
First it was discovered by Ernest Rutherford that atoms had an area of condensed positive charge in the centre, which he called...
Popularity: 143 • Tools: Recategorize
If you pour acid into water and it splashes the probability of getting a chemical burn is considerable less than if you pour...
Popularity: 143 • Tools: Recategorize
This equation is 2 KClO3 => 2 KCl + 3 O2.
Popularity: 143 • Tools: Recategorize
HCOOH + NaOH -> HCOONa + H2O (or HCCO-Na+ + H2O) http://wiki.answers.com/What_is_the_reaction_for_HCOOH_plus_KOH#ixzz16QaWKdkp
Popularity: 143 • Tools: Recategorize
Baking soda is H2CO3. The carbonate ion is very stable and will remain as one unit, a polyatomic ion. The two hydrogens are...
Popularity: 143 • Tools: Recategorize
CCl2F2 has a tetrahedral molecular geometry, since the central atom (C) has four bonds around it, 2 with Cl, and 2 with F.
Popularity: 143 • Tools: Recategorize
C21H22N2O2 C21H22N2O2
Popularity: 142 • Tools: Recategorize
The physical properties of matter are properties that can be observed without causing any change in the matter under observation....
Popularity: 142 • Tools: Recategorize
The name of the element and the number of neutrons.
Popularity: 142 • Tools: Recategorize
Because it can not form the acetyl group easily but above 1000 Celsius acetic acid may form acetic anhydride which may be used to...
Popularity: 142 • Tools: Recategorize
Because Carbon needs four electrons to complete it's outer shell, it can bond with a lot of different atoms and molecules....
Popularity: 142 • Tools: Recategorize
This is because the outermost or valence electrons experience very less attraction from the nucleus. Thus those electrons are...
Popularity: 142 • Tools: Recategorize
[Ne]3s23p2
Popularity: 142 • Tools: Recategorize
12 (exact by definition) grams/Avogadro's Number = about 12/6.022 X 1023 = 1.993 X 10-23 grams.
Popularity: 142 • Tools: Recategorize
H-Be-H. This is an exception to the octet rule.
Popularity: 142 • Tools: Recategorize
It is tetrahedral around the carbon atoms and bent around the oxygen atom.
Popularity: 141 • Tools: Recategorize
There are two types of mixtures: homogeneous and heterogeneous. The only similarities between the two, are that both are mixtures...
Popularity: 141 • Tools: Recategorize
clear water free of bacteria, heavy metal complexes, viruses and orcanic molecules with a molecular weight higher than 300 daltons
Popularity: 141 • Tools: Recategorize
I found the following list of medications that prevent you from donating blood: Accutune Advart Insulin Propecia ...
Popularity: 141 • Tools: Recategorize
When a shape memory polymer is used to stitch a wound loosely, the temperature of the body makes the thread tighten and close the...
Popularity: 141 • Tools: Recategorize
Acetone is a polar molecule that is attracted to other acetone molecules through dipole-dipole interactions. The oxygen on the...
Popularity: 141 • Tools: Recategorize
Wheight 2 g of Tween80 and add it to 98 g of the solvent (with water = also, though not exactly: fill it up to 100 ml)
Popularity: 141 • Tools: Recategorize
The price of diamonds means that lining a furnace with diamonds, sufficient to accomplish the task of insulating the furnace...
Popularity: 141 • Tools: Recategorize
pH = -log10[H+], where [H+] is the hydrogen ion concentration. So, in this case, pH = -log10[1], yielding pH = 0.
Popularity: 140 • Tools: Recategorize
At very low temperatures, ductile materials go through a transition to brittleness - above this point they are more ductile and...
Popularity: 140 • Tools: Recategorize
ncp stands for national congress party
Popularity: 140 • Tools: Recategorize
UV and IR radiation are both electromagnetic radiations. They differ in wavelength (the distance traveled by the wave in the time...
Popularity: 140 • Tools: Recategorize
I am not too sure about what you are asking. In chemistry, coke is simply carbon. Salt is any ionic compound formed by a...
Popularity: 140 • Tools: Recategorize
Dissolving in water = splitting in ions CH3COONH4 --> CH3COO- + NH4+ CH3COO-, acetate is a weak base: CH3COO- + H2O <>...
Popularity: 140 • Tools: Recategorize
solution.
Popularity: 140 • Tools: Recategorize
Ionic: If absent, no batteries, no electrolysis, no acids no bases....Covalent: If absent, no plastics, no breath (C-H goes to...
Popularity: 140 • Tools: Recategorize
atoms vibrate at particular frequencies, depending on their energy. If the energy of a particular atom has a vibration frequency...
Popularity: 140 • Tools: Recategorize
Life ON EARTH relies mainly on six elements. The big four are hydrogen, oxygen, carbon, and nitrogen along with smaller amounts...
Popularity: 140 • Tools: Recategorize
give options atleast well it can b obtained directly by typin on google
Popularity: 139 • Tools: Recategorize
any body got a clue cause i have no idea so please make my answer better thanks
Popularity: 139 • Tools: Recategorize
(Yes, they do...)Most acids do, but we have also Lewis Acids(and bases). 'Normal" acids splits a H+ into solution who is...
Popularity: 139 • Tools: Recategorize
Gand marao bhosdi walo. Answer kahin nai milega.
Popularity: 139 • Tools: Recategorize
The mass action effect is the shift in the position of equilibrium through the addition or removal of a participant in the...
Popularity: 139 • Tools: Recategorize
yes aluminum does shrink when heated. It also melts when heated without turning red and when overheated, causes stress and strain...
Popularity: 139 • Tools: Recategorize
solid + heat = liquid liquid + heat = gas gas minus heat equals liquid liquid minus heat equals solid This assumes proper...
Popularity: 139 • Tools: Recategorize
CBr4 does not have a dipole moment.
Popularity: 139 • Tools: Recategorize
Magnesium fluoride is a white crystalline salt and so it is a solid.
Popularity: 139 • Tools: Recategorize
Disperse Dye is an organic dye used to dye cellulose acetate and are water soluble. These dyes are mainly use in dying of...
Popularity: 139 • Tools: Recategorize
Mg(OH)2 + 2HCl >> MgCl2 + 2H2O
Popularity: 139 • Tools: Recategorize
Lithium (Li), with a Mohs hardness of 0,6.
Popularity: 139 • Tools: Recategorize
Molarity = moles of solute(CuSO4)/volume of solution(Liters) 0.967 grams CuSO4 (1 mole CuSO4/159.62 grams) = 0.00606 moles CuSO4...
Popularity: 139 • Tools: Recategorize
2Mg + CO2 --> 2MgO + C
Popularity: 139 • Tools: Recategorize
Put simply, fire requires three things to burn: a fuel, heat and oxygen. The fuel is whatever the fire is burning, and this may...
Popularity: 139 • Tools: Recategorize
Most poly(vinyl chloride) in common use contains, in addition to the polymers of vinyl chloride that constitute most of its mass,...
Popularity: 139 • Tools: Recategorize
copper (II) sulfate is CuSO4 ; Zinc sulfate is ZnSO4Zn + CuSO4 --> ZnSO4 + Cu
Popularity: 139 • Tools: Recategorize
NO3 (or more properly NO3-) does not exist in any particular state, it is an ion that does not exist on its ow. Due to its...
Popularity: 139 • Tools: Recategorize
Anything in column 15 - nitrogen and phosphorus are two examples.
Popularity: 139 • Tools: Recategorize
In general, affinity = attractionIn chemistry: The force attracting atoms to each other and binding them together in a molecule....
Popularity: 139 • Tools: Recategorize
Iron meteorites account for about 5% of all meteorites that fall to earth, they are likely to be either Kamacite or Taenite. The...
Popularity: 139 • Tools: Recategorize
The word "vinegar" derives from the French vin aigre, meaning "sour wine." Its called Acetic acid or Ethanoic acid. Its chemical...
Popularity: 138 • Tools: Recategorize
vaporizes very easily vapor heavier than air vapor ignites easily once vapor ignited burns rapidly (nearly explosive)
Popularity: 138 • Tools: Recategorize
H2O is very strongly hydrogen bonded. These bonds require energy to break resulting in a higher boiling point.
Popularity: 138 • Tools: Recategorize
CH4(g) + O2(g) = C(s) + 2H2O(l)OR2CH4(g) + 3O2(g) = 2CO(g) + 4H2O(l)
Popularity: 138 • Tools: Recategorize
Colvalent because they are all non-metals
Popularity: 138 • Tools: Recategorize
No, Teflon can be reactive. As a matter of fact, we have to be careful about non-stick instruments for cooking.At high...
Popularity: 138 • Tools: Recategorize
Steel is annealed to bring it to a specific level of hardness, reducing its brittleness after heat treatment or forging.
Popularity: 138 • Tools: Recategorize
Al 3+Ga 3+In 3+Tl 1+ 3+
Popularity: 138 • Tools: Recategorize
Coloured salts generally have a cation which is a transition metal. Iron, Chromium, Manganese, Vanadium and Copper all are...
Popularity: 138 • Tools: Recategorize
The Carbon contributes 4 valance electrons and each oxygen contributes 6 valance electrons for a total of 16. Start by putting...
Popularity: 138 • Tools: Recategorize
A test tube holder is like tongs and it is used to hold 1 test tube while it is being heated or moved and a rack is a thing that...
Popularity: 138 • Tools: Recategorize
loveA bit more:Love is important, but there also needs to be loyalty, trust, respect, and having consideration for each other's...
Popularity: 138 • Tools: Recategorize
Hydrocarbon fuels contain a mixture of molecules classified as "hydrocarbons" along with various other non-hydrocarbon components...
Popularity: 138 • Tools: Recategorize
non polar because there are 12 h with electro negativity of 2.1 whereas C 5 has electronegativity of 2.5 there fore it is npot...
Popularity: 138 • Tools: Recategorize
A chemical reaction; the resulting substance is a salt. I would need to know what type of metal you are talking about. All metals...
Popularity: 137 • Tools: Recategorize
Melting and boiling points are characteristic properties of pure substances. Just about every school child learns the...
Popularity: 137 • Tools: Recategorize
Protons.
Popularity: 137 • Tools: Recategorize
Yes. Barium Iodide is soluble in water.
Popularity: 137 • Tools: Recategorize
The chemical symbol Ag is from the Latin for "silver", argentum.
Popularity: 137 • Tools: Recategorize
there is no set location at level five it will be random loot from dungeons and at level six it will be sold from vendors best...
Popularity: 137 • Tools: Recategorize
1. Buna-N: nitrile rubber, also known as , Perbunan, or NBR, is asynthetic rubber copolymer of acrylonitrile (ACN) and butadiene....
Popularity: 137 • Tools: Recategorize
A water bath is used for heating alcohol, as this keeps alcohol (flammable) away from open flames.
Popularity: 137 • Tools: Recategorize
Use liters to match other units. So. 100 ml = 0.1 liters Molarity = moles of solute/ volume ( liters in this case ) of solution ...
Popularity: 137 • Tools: Recategorize
Yes
Popularity: 137 • Tools: Recategorize
